Sam Coupé

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The Sam Coupé is an 8-bit home computer originally released in 1989. Marketed as a logical upgrade from the ZX Spectrum with compatible modes it has an RGB output making it potentially ideal for use with the XRGB or OSSC upscalers.

Models

There was only a single revision board produced.

Important Notes

The SCART socket on the back of the SAM Coupé has a non-standard pin-out as it also has 5V and 12V inputs, TTL level output and a lightpen connection [1].

Pin Signal Pin Signal
1 AUDIO OUT RH 2 SPEN (Lightpen)
3 AUDIO OUT LH 4 AUDIO EARTH
5 BLUE EARTH 6 BLUE TTL OUT
7 BLUE LIN. OUT 8 RED TTL OUT
9 GREEN EARTH 10 GREEN TTL OUT
11 GREEN LIN. OUT 12 5V POWER IN
13 RED EARTH 14 CSYNC EARTH
15 RED LIN. OUT 16 CSYNC
17 C VID EARTH 18 12V POWER IN
19 C VID OUT 20 BRIGHT TTL OUT
21 GND.

Modifications

When using an RGB cable there is a lot of reflection on the picture, the fix is a to remove inductor L5 from the main board and replace it with a wire link [2].

XRGB-3 Specific settings

Not tested.

XRGB-Mini Specific settings

Not tested.

OSSC Specific settings

No changes from default settings.

External Links

[3] World of SAM software archive and community forum